John Lennon fathered two boys.
With his first wife Cynthia, we got Julian Lennon, who achieved moderate success in the 80s, but never really took off like many hoped he would. Actually, Julian is quite talented to be honest. He's a pretty good songwriter in my opinion and sounds very much like his genius father. Why he didn't become a huge superstar is puzzling. I mean, Judy Garland was big and Liza Minelli did just fine following in her mother's footsteps didn't she? I really think Julian could've become very very popular. He seemed to be doing well in 1984, and then just kinda did not take off.
Then there's Sean Lennon. Oh dear. What can I say? Sean seems like a sweet dude. He really does. It must not have been, and prolly still is not easy to be Yoko Ono's son. Lets face it, Yoko is not very well-liked, though my opinion on tha hag is softening a bit I suppose as the years go on by. Sean is quite dull musically though. I just can't seem to find the coolness in his songwriting like I do in Julian's. I just shake my head and wonder really. Howard Stern once said, "Poor Sean. Must be rough to inherit all of your father's money and none of his talent." OUCH!
Sadly, I think Howard was right.